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Head OIAN
Head muscles OIAN
Muscle | Origin - O | Insertion - I | Action - A | Nerve - N | Group/Location |
---|---|---|---|---|---|
Longus colli (Prevertebral) | Bodies & transverse processes of C3-T2 | Transverse processes & bodies of C1-C6 | Flex neck | Prevertebral muscle | |
Longus capitis (Prevertebral) | Transverse processes of C3-C6 | Occipital bone | Flex head | Prevertebral muscle | |
Rectus capitis anterior (Prevertebral) | Atlas | Occipital bone | Flex head | Prevertebral muscle | |
Rectus capitis lateralis (Prevertebral) | Transverse process of atlas | Occipital bone | Laterally bend head | Prevertebral muscle | |
Platysma (Superficial cervical) | N/A | N/A | Draws lower lip down & out, tensing skin over neck | Mouth & hyoid bone / Superficial cervical | |
Digastric (Suprahyoid) | N/A | N/A | Raises hyoid bone and/or tongue | Mouth & hyoid bone / Suprahyoid | |
Stylohyoid (Suprahyoid) | N/A | N/A | Raises hyoid bone and/or tongue | Mouth & hyoid bone / Suprahyoid | |
Mylohyoid (Suprahyoid) | N/A | N/A | Raises hyoid bone and/or tongue | Mouth & hyoid bone / Suprahyoid | |
Gleniohyoid (Suprahyoid) | N/A | N/A | Raises hyoid bone and/or tongue | Mouth & hyoid bone / Suprahyoid | |
Sternothyroid (Infrahyoid) | N/A | N/A | Lowers hyoid bone | Mouth & hyoid bone / Infrahyoid | |
Sternohyoid (Infrahyoid) | N/A | N/A | Lowers hyoid bone | Mouth & hyoid bone / Infrahyoid | |
Thyrohyoid (Infrahyoid) | N/A | N/A | Lowers hyoid bone | Mouth & hyoid bone / Infrahyoid | |
Omohyoid (Infrahyoid) | N/A | N/A | Lowers hyoid bone | Mouth & hyoid bone / Infrahyoid | |
Obliquus capitis superior (Suboccipital) | N/A | N/A | Head extension | Posterior, Suboccipital Muscles | |
Obliquus capitis inferior (Suboccipital) | N/A | N/A | Head extension, lateral bending, & rotation to the same side | Posterior, Suboccipital Muscles | |
Rectus capitis posterior minor (Suboccipital) | N/A | N/A | Head extension | Posterior, Suboccipital Muscles | |
Rectus capitis posterior major (Suboccipital) | N/A | N/A | Head extension, lateral bending, & rotation to the same side | Posterior, Suboccipital Muscles | |
Semispinalis (Transversospinalis) | Span 5+ vertebrae | N/A | Extend & rotate trunk | Spinal Nerves | Posterior, most superficial |
Rotatores (Transversospinalis) | Span 2-4 vertebrae | N/A | Extend & rotate trunk | Spinal Nerves | Posterior, most deep & shortest |
Multifidus (Transversospinalis) | Span 1 vertebrae | N/A | Extend & rotate trunk to opposite side | Spinal Nerves | Posterior, lies underneath the semispinalis |